/**
 * Copyright (c) 广州小橘灯信息科技有限公司 2016-2017, wjun_java@163.com.
 * <p>
 * Licensed under the GNU Lesser General Public License (LGPL) ,Version 3.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.gnu.org/licenses/lgpl-3.0.txt
 * http://www.xjd2020.com
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.jeegot.cms.directive;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.jeegot.cms.entity.ArticleCategory;
import com.jeegot.cms.service.IArticleCategoryService;
import com.jeegot.core.directive.BaseDirective;
import freemarker.core.Environment;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.List;
import java.util.Map;

/**
 * @author： wjun_java@163.com
 * @date： 2021/6/9
 * @description：
 * @modifiedBy：
 * @version: 1.0
 */
@Component("categoryTag")
public class ArticleCategoryDirective extends BaseDirective {

	private static final String ARTICLE_CATEGORY_ID = "id";

	@Autowired
	private IArticleCategoryService articleCategoryService;

	@Override
	public Object doExecute(Environment env, Map params) {

		Long categoryId = getLong(ARTICLE_CATEGORY_ID, params, 0l);

		ArticleCategory articleCategory = articleCategoryService.getById(categoryId);

		if(articleCategory != null) {
			QueryWrapper queryWrapper = new QueryWrapper();
			queryWrapper.eq("parent_id", categoryId);
			List<ArticleCategory> children = articleCategoryService.list(queryWrapper);
			articleCategory.setChildren(children);
		}

		return articleCategory;
	}

}
